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1. 发明专利

JP2003019544A Method for controlling crown in cast strip 有权
标题翻译：控制铸造条纹的方法
公开(公告)号：JP2003019544A
公开(公告)日：2003-01-21
申请号：JP2001203798
申请日：2001-07-04
申请人： Mitsubishi Heavy Ind Ltd , Nippon Steel Corp , 三菱重工業株式会社 , 新日本製鐵株式会社
发明人： ARAI TAKASHI , IZU TADAHIRO , TANAGA TAKESHI , TSUNENARI KEIJI , MIYAKE KATSUYOSHI
IPC分类号： B22D11/06
摘要： PROBLEM TO BE SOLVED: To produce a cast strip having suitable crown by reducing change of the crown on the cast strip caused by thermal expansion of a cooling drum.
SOLUTION: In a method for casting the cast strip by using the cooling drum 4, an outer layer water passage is arranged in an inner layer part along the peripheral surface of the cooling drum 4 and an inner layer water passage is arranged in the inside of the outer layer water passage. A water temperature controller 24b controls a shell thickness constant by controlling a water temperature adjusting device 21b according to the water temperature with water thermo- meters 22c, 22d and a water temperature controller 24a controls a water temperature adjusting device 21a according to the water temperature with the water thermo-meters 22a, 22b and/or the crown on the cast strip with a thickness meter 23 in the width direction of the cast strip, and in this way, the cast strip having the suitable crown can be produced.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：通过减少由冷却滚筒的热膨胀导致的铸造带材的冠部的变化，来制造具有合适的凸缘的铸造带材。解决方案：在通过使用冷却滚筒4铸造铸造带材的方法中，外层水通道沿着冷却滚筒4的周面布置在内层部分中，内层水通道设置在外层水通道。水温控制器24b通过用水温22c，22d根据水温控制水温调节装置21b控制壳体厚度常数，水温控制器24a根据水温与水温调节装置21a控制，水温计22a，22b和/或铸造带上的表冠，在铸造带材的宽度方向上具有厚度计23，并且以这种方式，可以制造具有合适冠部的铸造带材。

2. 发明专利

JP2002219557A TWIN DRUM TYPE CONTINUOUSLY CASTING DRUM 失效
公开(公告)号：JP2002219557A
公开(公告)日：2002-08-06
申请号：JP2001015357
申请日：2001-01-24
申请人： MITSUBISHI HEAVY IND LTD , NIPPON STEEL CORP
发明人： ISOKAMI KATSUYUKI , YAMADA MAMORU , TANAGA TAKESHI , ISAKI HIROSHI , IZU TADAHIRO , TSUNENARI KEIJI , YAMAMURA KAZUTO , MIYAKE KATSUYOSHI , YOKOO KAZUTOSHI , SASAKI KUNIMASA
IPC分类号： B22D11/06
摘要： PROBLEM TO BE SOLVED: To provide a casting drum composed of a Cu-alloy made sleeve and an SUS-made core light in weight, free from the sliding of a fitting part in thermal loading, and long in durable life, in a twin drum type continuous casting drum used for twin drum type continuous casting equipment. SOLUTION: By constituting the SUS made core, which is fitted into a Cu- alloy made sleeve, of ring-shaped cores juxtaposed in the axial direction with a space with one another as a plurality of splitted bodies, the sleeve is movable in the axial direction at the part where the core does not exist, and the relative sliding on the fitting part becomes hard to be caused at the part where the core exists owing to that the length in the axial direction of the fitting part of the sleeve and the core is cut to be short, as a result, enabling the tightening force to be small in fitting of the sleeve and the core, which enables the sleeve to be formed thin.

3. 发明专利

JP2002035897A COOLING DRUM FOR CONTINUOUS CASTING 失效
公开(公告)号：JP2002035897A
公开(公告)日：2002-02-05
申请号：JP2000218659
申请日：2000-07-19
申请人： MITSUBISHI HEAVY IND LTD , NIPPON STEEL CORP
发明人： YAMAMOTO KEIICHI , HASHIMOTO RITSUO , TANI MITSUO , YOKOO KAZUTOSHI , MIYAKE KATSUYOSHI , YUSA JOJI , TSUNENARI KEIJI , YAMAMURA KAZUTO , YAMADA MAMORU , ISAKI HIROSHI
IPC分类号： B23P11/02 , B22D11/06
摘要： PROBLEM TO BE SOLVED: To provide a cooling drum for continuous casting in which sleeves of a pair of cooling drums do not relatively deviate from each other. SOLUTION: In the cooling drum for a drum type continuous casting machine, molten metal 3 is supplied to a pouring basin formed by a pair of cooling drums 1 which rotates opposite to each other and side gates 2 to bring it into contact with the surface of the cooling drum 1 and cool it and form a solidified shell for casting a metal thin sheet 4, the cooling drum 1 is provided with a drum body 11 having a hollow shaft 11a at both ends and a drum sleeve 10 fitted to the outer periphery of the drum body 11 and further, the drum body 11 is dividedly formed of a pair of shaft members 11A of which the hollow shaft 11a is integrally formed and which is connected to the end of the drum sleeve respectively, and a core member 11B which does not keep in contact with the shaft member 11A and is shrink-fitted onto the inside face of the drum sleeve.

4. 发明专利

JP2010058145A Method for reforming surface layer of cast steel billet 有权
标题翻译：改造铸钢板表面层的方法
公开(公告)号：JP2010058145A
公开(公告)日：2010-03-18
申请号：JP2008226193
申请日：2008-09-03
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： HAMAYA HIDEKI , YAMAMOTO KENICHI , TANAKA JUN , FUJI TAKEHIKO , TSUNENARI KEIJI , UMETSU KENJI , TAKEUCHI JUN
IPC分类号： B22D11/00 , B22D11/12 , B22D19/00 , B22D19/16 , B23K9/00 , B23K9/022 , B23K9/04 , B23K9/095 , B23K10/02 , B23K35/30 , B23K103/04 , C22C19/03 , C22C38/00 , C23C26/00
摘要： PROBLEM TO BE SOLVED: To provide a method for reforming the surface layer of a cast steel billet which securely reforms the surface layer of the cast steel billet containing copper and can prevent the occurrence of cracks during hot working.
SOLUTION: In the method, a wire 7 is continuously fed into a melt pool 8 being stirred by oscillating the wire 7, while adjusting the center position of oscillation of the wire 7 to the center between plasma torches 3 so as to satisfy the following formula: 4Lo/Fo
摘要翻译：要解决的问题：提供一种对含有铜的铸钢坯的表层进行可靠改造的铸钢坯的表面层的重整方法，能够防止热加工时的裂纹的产生。解决方案：在该方法中，将线7连续地供给到通过使线7摆动而搅拌的熔池8中，同时将线7的振荡的中心位置调整到等离子体炬3之间的中心，以满足以下公式：4Lo / Fo

5. 发明专利

JP2005297006A Mold for continuous casting 有权
标题翻译：模具连续铸造
公开(公告)号：JP2005297006A
公开(公告)日：2005-10-27
申请号：JP2004117170
申请日：2004-04-12
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TSUNENARI KEIJI , YAMASAKI NORIMASA , YAMAZAKI YASUO , TANI MASAHIRO
IPC分类号： B22D11/04
摘要： PROBLEM TO BE SOLVED: To provide a mold for continuous casting in which electromagnetic force can be impressed to molten metal in a mold and the width of a produced cast slab can be changed and the good quality cast slab can be produced for long term.
SOLUTION: A movable type first cooling copper plate 20 constituting the mold for continuous casting is electrically insulated with an insulating material 45 dividing the first cooling copper plate 20 in the casting direction. Then, a gap preventive means for preventing the occurrence of a gap between the insulating material 45 and the first cooling copper plate 20 according to the difference of thermal expansion caused by the molten metal heat supplied into a space making flow of the molten metal is disposed. As the gap preventive means, a thermocouple, a means 21 for heating such as a steam flowing passage, or a means for mechanically holding such as clamp, tie-bolt, etc. are used.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种用于连续铸造的模具，其中可以对模具中的熔融金属施加电磁力，并且可以改变生产的铸坯的宽度，并且可以长时间生产优质铸造板坯术语。解决方案：构成连续铸造用模具的可动型第一冷却铜板20与在铸造方向上分割第一冷却铜板20的绝缘材料45电绝缘。然后，设置用于根据由供给到熔融金属的空间流动的熔融金属热引起的热膨胀差来防止绝缘材料45与第一冷却铜板20之间发生间隙的间隙防止装置。作为间隙预防装置，使用热电偶，用于加热的装置21，例如蒸汽流动通道，或用于机械保持的装置，例如夹具，连接螺栓等。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2003236646A METHOD FOR CONTINUOUSLY CASTING THIN CAST SLAB HAVING EXCELLENT SURFACE CHARACTERISTIC AND PARTITIONING WEIR 审中-公开
公开(公告)号：JP2003236646A
公开(公告)日：2003-08-26
申请号：JP2002037159
申请日：2002-02-14
申请人： NIPPON STEEL CORP
发明人： YAMAMURA HIDEAKI , OHASHI WATARU , FUJI TAKEHIKO , TSUNENARI KEIJI
IPC分类号： B22D11/06 , B22D41/50
摘要： PROBLEM TO BE SOLVED: To provide a method for continuously casting a twin-drum type thin cast slag with which the volume of a molten steel pool to be cooled by the drums is reduced an the non-uniformity of temperature in the molten steel pool part to be cooled with the drums can be restrained, in order to prevent the development of a low temperature part caused by the non-uniformity of the molten steel temperature in the molten steel pool and prevent the uneven glossiness of the steel strip and the rough surface after processing. SOLUTION: A partitioning weir which is not brought into contact with the drum at the inner side of the molten metal pool of a molten metal staying part is arranged, and the molten metal pool of the molten metal staying part is separated into a portion surrounded with the partitioning weir and a portion at the outside of the partitioning weir, and the staying time of the molten metal in the molten metal pool at the outside of the partitioning weir is set to ≤8 sec. COPYRIGHT: (C)2003,JPO

7. 发明专利

JP2003181603A POURING NOZZLE FOR CASTING THIN STRIP-LIKE SLAB 审中-公开
公开(公告)号：JP2003181603A
公开(公告)日：2003-07-02
申请号：JP2001387829
申请日：2001-12-20
申请人： NIPPON STEEL CORP
发明人： MIYAZAKI MASAFUMI , ISAKI HIROSHI , TAKEUCHI TOMOHIDE , KOBAYASHI HIDEAKI , TSUNENARI KEIJI , YAMAMURA HIDEAKI , FUJI TAKEHIKO
IPC分类号： B22D11/10
摘要： PROBLEM TO BE SOLVED: To provide a pouring nozzle which, in a method for continuously casting a thin strip-like slab, can uniformize the temperature of the whole of molten steel within a pouring basin to prevent the occurrence of a solidified product on the surface of the molten steel and, at the same time, can realize stable and uniformized solidification. SOLUTION: A pouring nozzle 13 includes a cylindrical part 2 provided in the upper part and a flat part 1 provided in the lower part. The flat part 1 includes narrow wall surfaces 6, 6 and wide wall surfaces 7, 7. A flat nozzle hole having a shape along the narrow wall surfaces 6, 6 and the wide wall surfaces 7, 7 is provided within the flat part 1. A lateral opening 4 is provided in the narrow wall surface 6, and a lateral opening 5 is provided in the wide wall surface 7. A slit-shaped downward extended opening, which is in communication with the lateral opening 4, is provided at the lower end of the flat nozzle hole. The center part of the lower end of the flat nozzle hole is connected by a connecting part. COPYRIGHT: (C)2003,JPO

8. 发明专利

JPH0740002A METHOD FOR CONTINUOUSLY CASTING SMALL LOT OF MATERIALS 失效
公开(公告)号：JPH0740002A
公开(公告)日：1995-02-10
申请号：JP20371793
申请日：1993-07-27
申请人： NIPPON STEEL CORP
发明人： TAKEI HIROMICHI , NAGATA TAKUO , TSUNENARI KEIJI
IPC分类号： B22D11/00 , B22D11/10 , B22D11/108
摘要： PURPOSE:To efficiently cast particularly, small lot of materials in a continuous casting method for metal. CONSTITUTION:A tundish 2 for dividing molten metal into plural strands and a butch type continuous caster being possible to control the length of a cast slab independently in each strand are combined, and at first, the molten metal 5 in a ladle 1 is poured into one or plural strands through the tundish. Successively, the casting is completed at the time when the cast slab 6 becomes a fixed length, and the cast slab is carried out and successively, the molten metal 5 for the following casting is poured into the tundish 2 from the ladle 1 and waited. During this time, the continuous caster executes a preparation for the following casting and successively, the casting is restarted and this process is repeated in order to execute the casting. By this method, as the cast slab having many sizes and small lot can efficiently be cast, the correspondence to the many kinds is made to be easy and the producing ratio of the remainder is reduced and the stock cost, etc., can be reduced.

9. 发明专利

JP2011224638A Apparatus and method for continuously casting steel 审中-公开
标题翻译：连续铸钢的设备和方法
公开(公告)号：JP2011224638A
公开(公告)日：2011-11-10
申请号：JP2010098974
申请日：2010-04-22
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： TSUNENARI KEIJI , MARUKI YASUO
IPC分类号： B22D11/05 , B22D11/04 , B22D11/10
摘要： PROBLEM TO BE SOLVED: To suppress degradation of production yield of cast slab while improving quality of the cast slab in continuous casting of steel.SOLUTION: A continuous casting apparatus 1 includes: a cast mold 3 having a pair of long side walls 10 and 11 and a pair of short side walls 12 and 12; and an immersion nozzle 5 for discharging molten steel 4 into the cast mold 3, respectively. Electromagnetic stirring devices 20 and 20 for stirring an upper part of the molten steel 4 in the cast mold 3 are arranged to the long side walls 10 and 11 along outer side walls of the long side walls 10 and 11. At least a concave 21 being recessed from an inner side wall 10b toward the outer side wall 10a side at a position facing the immersion nozzle 5 and a long side wall moving part 22 having a shape conforming to the concave 21 and movable along the thickness direction of the cast mold 3 are disposed on the long side wall 10. The pair of short side walls 12 and 12 are configured to be movable in a width direction of the cast mold 3 when the long side wall moving part 22 is housed in the concave 21.
摘要翻译：待解决的问题：为了抑制铸坯的生产率的降低，同时提高钢的连续铸造中的铸坯的质量。解决方案：连续铸造设备1包括：具有一对长侧壁10和11以及一对短侧壁12和12的铸模3; 以及用于将钢水4分别排出到铸模3中的浸渍喷嘴5。用于搅拌铸模3中的钢水4的上部的电磁搅拌装置20和20沿着长侧壁10和11的外侧壁布置在长侧壁10和11上。至少凹面21为在面向浸入式喷嘴5的位置处从内侧壁10b朝向外侧壁10a侧凹陷，具有与凹部21一致的形状并沿着铸模3的厚度方向移动的长边侧壁移动部22，设置在长边壁10上。一对短侧壁12和12构造成当长侧壁移动部分22容纳在凹面21中时可在铸模3的宽度方向上移动。（C）2012，JPO＆INPIT

10. 发明专利

JP2001219250A DEVICE AND METHOD FOR CONTROLLING TEMPERATURE OF MOLTEN STEEL IN TUNDISH, AND COMPUTER-READABLE STORAGE MEDIUM 失效
公开(公告)号：JP2001219250A
公开(公告)日：2001-08-14
申请号：JP2000030889
申请日：2000-02-08
申请人： NIPPON STEEL CORP
发明人： HASEGAWA AKIHIKO , TSUNENARI KEIJI , IZU TADAHIRO
IPC分类号： B22D11/10 , B22D11/16 , B22D41/005 , B22D46/00
摘要： PROBLEM TO BE SOLVED: To improve the accuracy in controlling the molten steel temperature in a tundish. SOLUTION: A control unit 17 operates and estimates the temperature T(t+i) of the molten steel in the tundish 2 at the i-sampling time ahead using the present molten steel temperature T(t) in the tundish 2, the temporal change Gi.Δu of the molten steel temperature in the tundish 2 estimated in changing the plasma heating power of a main power source 9, and the change ΔTi in the molten steel temperature in the tundish 2 estimated based on the casting process such as the pouring of the molten steel from a ladle 1 and the pouring of the molten steel in a mold 6. The optimum change Δu in the plasma heating power of the main power source 9 is operated from the estimated molten steel temperature T(t+i) and the preset target molten steel temperature r, and the molten steel temperature in the tundish 2 is controlled by changing the plasma heating power of the main power source 9 by the change Δu in the plasma heating power.

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